RhymeZone: sybil definitions

Definitions of Sybil:

name: A female given name (rare: 1 in 6250 females; popularity rank in the U.S.: #693)

noun: Prophetess; hag.
noun: A female given name from Ancient Greek, the most popular spelling variant of Sibyl since the 19th century.

(Definitions from Wiktionary)